/// <summary>
/// Here we have two user authenticators that we need to run together, since we just purchased a competitor's site. They are, however, incompatible in their methods.
/// </summary>
public static void Main()
{
User clint = User.CreateUser("Clint Eastwood", "MakeMyDayPunk");
IUserAuthenticator inHouseAuthenticator = new UserAuthenticator();
if (inHouseAuthenticator.CanAuthenticate(clint))
{
Debug.WriteLine(clint.Name + " can access our site.");
}
else
{
// Go through the motions of the third-party authenticator, somewhat different to our in-house one.
ThirdPartyAuthenticator thirdpartyAuthenticator = new ThirdPartyAuthenticator();
thirdpartyAuthenticator.StoreCredentials(clint.Name, clint.Password);
// ... and try to authenticate using them both
if (thirdpartyAuthenticator.TryToAuthenciate())
{
Debug.WriteLine(clint.Name + " can access this website");
}
else
{
Debug.WriteLine(clint.Name + " cannot access this website");
}
}
}
/// <summary>
/// By introducing the ThirdPartyAuthenticatorAdapter-class we have effectively wrapped the third-party authenticator, and can now call them in the same fashion.
/// </summary>
private static void Main()
{
User clint = User.CreateUser("Clint Eastwood", "MakeMyDayPunk");
IUserAuthenticator inHouseAuthenticator = new UserAuthenticator();
IUserAuthenticator thirdpartyAuthenticatorAdapter = new ThirdPartyAuthenticatorAdapter();
if (inHouseAuthenticator.CanAuthenticate(clint) || thirdpartyAuthenticatorAdapter.CanAuthenticate(clint))
{
Debug.WriteLine(clint.Name + " can access our site.");
}
else
{
Debug.WriteLine(clint.Name + " cannot access this website");
}
}
